Document Type and Number:
Japanese Patent JPS5687691
Kind Code:
U
Application Number:
JP17062579U
Publication Date:
July 14, 1981
Filing Date:
December 10, 1979
Export Citation:
International Classes:
F16L41/00; B21D39/02; B21D39/06; B21D41/04; F16J15/04; F16L41/02; F23K5/00; (IPC1-7): F16L41/00; B21D39/06; B21D41/04; F16J15/04; F23K5/00